MESON Chess Problem Database

Problem Display
PID: 245294 (4B3/4N1Kn/4k1Np/p1n1p3/2r5/B7/Q5p1/2b1Rb2 w - - 0 1)

Onkoud, Abdelaziz

Hlas l'udu, 1996

4B3/4N1Kn/4k1Np/p1n1p3/2r5/B7/Q5p1/2b1Rb2

#2

7 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Rxe5#
    • 1...Sd3
      • 2.Qxc4#
    • 1...Sa4
      • 2.Rxe5#
    • 1...Sa6
      • 2.Rxe5#
    • 1...Sb7
      • 2.Rxe5#
    • 1...Sd7
      • 2.Bf7#
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qb6#
      • 1...Kd6
        • 2.Qb6#
      • 1...Sxb3
        • 2.Rxe5#
      • 1...Sd3
        • 2.Qxc4#
      • 1...Sa4
        • 2.Rxe5#
      • 1...Se4
        • 2.Qh3#
      • 1...Sa6
        • 2.Rxe5#
      • 1...Sb7
        • 2.Rxe5#
      • 1...Sd7
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);N_SPINR(d)::R1(A),XP(g)
    • S(f);S_CUTB(b)::QAB(B),XR(d)
    • S(f);::R1(A),XP(g)
    • S(f);SBLOCK::B(G)
  • Actual
    • Q(B);
    • Threat
      • QAR(B)
    • Vars
      • K(h);N_SPINP(g),N_SPINR(d),P-FLIGHT,P_SPINS(f)::QAR2(B)
      • S(f);N_SPINR(d),XQ(B)::R1(A),XP(g)
      • S(f);S_CUTB(b)::QAB(B),XR(d)
      • S(f);::R1(A),XP(g)
      • S(f);N_SPINP(g)::QAB(B)
      • S(f);SBLOCK::B(G)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).